How much is the temperature of the electric iron? How much watts is good?I use 25W pointed electric soldering iron solder on the graphics capacitor, half a day can not solder down, but also for a long time, the video card to burnIs that tin impure or is my soldering temperature too hot?Tin will melt soon. I wonder why a capacitor doesn't weld
Obviously, the temperature is not high enough. The tin melts quickly. It doesn't mean the temperature is hot enough
The electric iron can improve the temperature, change a power again big point, the operation should be smart, will be the best solder obliquely downwards, solder has melted iron will immediately leave and get rid of the iron head on the tin, and then close to the molten tin solder again, this action should be quickly repeated several times until the solder metal all removed. A new element, the first component of the welding foot inserted, welding tip do not dip too much tin, quick action is the best point of soldering to the circuit board and component pins, to stabilize slightly for a while, after cooling the long element pins with side cutters cut. As a product of drum type welding tin solder, soldering paste containing.
Circuit board, integrated circuit this is best to use DC iron belt, reliable grounding.25W is still pointed, and the 60W is too small. I use 500W constant temperature DC soldering iron.The iron temperature is not enough temperature to 380-410 degrees, because the iron head is small, the heat transfer is slow, that is to say in unit time passes in the heat of melting solder is not a long time, the local temperature will rise so high power short iron.If it were me, I would use 1.25mm's iron head 450 degrees, solder a small amount of soldering iron, and then go to the capacitor solder joints; a small amount of solder to increase the contact area with solder joints to speed up heat transfer.
